1210201320 has 64 divisors (see below), whose sum is σ = 3755808000. Its totient is φ = 311591168.

The previous prime is 1210201283. The next prime is 1210201339. The reversal of 1210201320 is 231020121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1210201296 and 1210201305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170400 + ... + 177359.

It is an arithmetic number, because the mean of its divisors is an integer number (58684500).

Almost surely, 2^1210201320 is an apocalyptic number.

1210201320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210201320 is an abundant number, since it is smaller than the sum of its proper divisors (2545606680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210201320 is a wasteful number, since it uses less digits than its factorization.

1210201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347802 (or 347798 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1210201320 is about 34787.9479130345. The cubic root of 1210201320 is about 1065.6613318481.

Adding to 1210201320 its reverse (231020121), we get a palindrome (1441221441).

The spelling of 1210201320 in words is "one billion, two hundred ten million, two hundred one thousand, three hundred twenty".